Di-N-Octyl Phthalate 117-84-0 C24H38O4

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Di-N-Octyl Phthalate (DNOP) is a colorless, oily liquid that is widely used as a plasticizer in various products such as PVC pipes, upholstery, and vinyl flooring. It is composed of phthalic acid and octanol, and it is notable for its ability to increase flexibility and durability of plastics.

One of the primary applications of DNOP is in the production of flexible PVC products. It serves as a plasticizer by reducing the rigidity of the polymer chains and increasing their mobility. As a result, it enhances the flexibility, ductility, and elongation of PVC products, making them more resistant to cracking and breaking.

Moreover, DNOP is also used as a lubricant and binder in the production of adhesives, coatings, and sealants. It helps to prevent coagulation and separation of the ingredients, which ensures uniformity of the final product. Additionally, DNOP can also act as a dispersant, which improves the homogeneity and stability of colloidal systems.

Furthermore, DNOP is considered to be a safe and effective plasticizer. It has low volatility, high compatibility with PVC, and it does not react with other additives or contaminants. It is also resistant to heat, light, and weathering, which makes it suitable for outdoor applications.

However, it's important to note that DNOP has been subject to regulatory restrictions and guidelines due to its potential adverse effects on human health and the environment. It can leach out of products over time, leading to potential exposure through ingestion, inhalation, and skin contact. Therefore, proper handling and disposal practices are necessary to minimize its impact.

In conclusion, DNOP is a versatile plasticizer with widespread applications in various industries. Its ability to enhance the flexibility and durability of plastics, as well as its compatibility with other ingredients, make it an essential component in the production of PVC products and other formulations. However, its regulatory status and potential health and environmental risks require careful consideration and management in its usage.


This product is the most widely used plasticizer, in addition to cellulose acetate, polyvinyl acetate, and most of the industrial use of synthetic resin and rubber have good compatibility. This product has good comprehensive performance, good mixing performance, high plasticizing efficiency, low volatility, low softness, good water resistance, high electrical performance, good
heat resistance and weather resistance.
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Di-N-Octyl Phthalate 117-84-0 C24H38O4